用黎曼和逼近定积分

GeoGebra 命令及参数

1. Point(xAxis) → A
2. Point(xAxis) → B
3. Integral(f, x(A), x(B)) → ACTUAL_{-}INTEGRAL
4. UpperSum(f, x(A), x(B), n) → UPPER_{-}SUM
5. LaTeX(UPPER_{-}SUM, true, true) → text1
6. LaTeX(f, true, true) → text4
7. LaTeX(UPPER_{-}SUM, true, true) → text5
8. LowerSum(f, x(A), x(B), n) → LOWER_{-}SUM
9. LaTeX(LOWER_{-}SUM, true, true) → text2